Vibrator power unit 687

Vibrator power unit 687; Eddystone, (ID = 2308419) Power-S Vibrator power unit 687; Eddystone, (ID = 2308420) Power-S
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Vibrator power unit 687; Eddystone, (ID = 2308419) Power-S
Eddystone,: Vibrator power unit 687 [Power-S] ID = 2308419 573x658
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For model Vibrator power unit 687, Eddystone, Birmingham:
Manufacturer's documentation.
Country:  Great Britain (UK)
Manufacturer / Brand:  Eddystone, Birmingham
alternative name
Stratton & Co.Ltd.; Birmingham
Year: 1947 ?? Category: Power supply/conditioner or battery or charger 
Valves / Tubes 1: 6X5G
Wave bands - without
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Model: Vibrator power unit 687 - Eddystone, Birmingham
Material Metal case
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.

Designed to operate specific Eddystone receiver models from a six-volt accumulator.
Model 687 is suitable for the 640, 710 and 740 receivers.
Model 687/1 is suitable for the 750, 888 and 888A receivers, which have balanced heaters.
The output cables terminate in octal plugs matching the sockets on the receivers.

Consists of a non-synchronous vibrator, transformer, 6X5G rectifier and RF filtering but not smoothing as this is provided in the receivers.

Total load about 6A.

Model page created by Bruce Taylor. See "Data change" for further contributors.

All listed radios etc. from Eddystone, Birmingham
Here you find 235 models, 88 with images and 34 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.